/* =================================================================
    [솔루션 상세 페이지] 2단 레이아웃
================================================================= */
.solution-detail-layout {
    display: flex !important;
    align-items: flex-start !important;
    gap: 40px !important;
    max-width: 1200px !important;
    width: 95% !important;
    margin: 40px auto !important;
    padding: 0 !important;
    float: none !important;
}

.solution-detail-main {
    flex: 1;
    min-width: 0;
}

.solution-detail-sidebar {
    width: 380px;
    flex-shrink: 0;
}

.sidebar-sticky-content {
    position: -webkit-sticky;
    position: sticky;
    top: 100px;
}

/* =================================================================
    [솔루션 상세 페이지] 메인 콘텐츠 (오른쪽)
================================================================= */
.solution-content-box {
    background-color: var(--color-surface);
    padding: 30px 40px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.04);
}

.solution-content-box .post-header h1 {
    font-size: 2.2rem;
    line-height: 1.5;
    margin-bottom: 20px;
    word-break: keep-all;
}

.solution-content-box .post-meta {
    display: flex;
    gap: 20px;
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
}

.solution-content-box .post-body {
    line-height: 1.8;
    font-size: 1.1rem;
    color: var(--color-text-main);
}

/* =================================================================
    [솔루션 상세 페이지] 사이드바 (왼쪽)
================================================================= */
.solution-detail-sidebar h3 {
    font-size: 1.2rem;
    margin-top: 0;
    margin-bottom: 15px;
    color: var(--color-text-dark);
    padding-bottom: 10px;
    border-bottom: 1px solid var(--color-border);
}

.sidebar-search {
    position: relative;
    margin-bottom: 15px;
}

.sidebar-search .fa-search {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-light);
}

#solution-sidebar-search {
    width: 100%;
    padding: 10px 15px 10px 40px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-size: 0.95rem;
    box-sizing: border-box;
    background-color: var(--color-surface);
}

.sidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 60vh;
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    background-color: var(--color-surface);
}

.sidebar-list a {
    display: block;
    padding: 12px 15px;
    text-decoration: none;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
    font-size: 0.9rem;
    line-height: 1.5;
    transition: background-color 0.2s;
    word-break: keep-all;
}

.sidebar-list li:last-child a {
    border-bottom: none;
}

.sidebar-list a:hover {
    background-color: var(--color-background-light);
}

.sidebar-list a.active {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 700;
}

/* =================================================================
    반응형 스타일
================================================================= */
@media (max-width: 1200px) {
    .solution-detail-layout {
        flex-direction: column-reverse !important; /* 모바일에서는 본문이 위로 오도록 순서 변경 */
        width: 100% !important;
        padding: 0 20px !important;
        box-sizing: border-box !important;
        gap: 0 !important;
    }
    .solution-detail-sidebar {
        width: 100%;
        margin-top: 40px;
    }
}
/* =================================================================
    [추가] 메인 검색창 스타일
================================================================= */
.main-search-container {
    position: relative;
    max-width: 700px; /* 검색창 최대 너비 설정 */
    width: 100%;
    margin: 0 auto 40px auto; /* 상하 0, 좌우 자동 (중앙 정렬) / 아래쪽 여백 40px */
}

#solution-main-search {
    width: 100%;
    padding: 18px 25px 18px 55px; /* 패딩 값 조정 (상하, 우, 하, 좌) */
    border: 1px solid var(--color-border);
    border-radius: 50px; /* 완전히 둥근 모서리 */
    font-size: 1.1rem; /* 글자 크기 살짝 키움 */
    box-sizing: border-box;
    background-color: var(--color-surface);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05); /* 은은한 그림자 효과 */
    transition: all 0.3s ease; /* 부드러운 전환 효과 */
}

#solution-main-search:focus {
    outline: none;
    border-color: var(--color-primary); /* 포커스 시 테두리 색상 변경 */
    box-shadow: 0 5px 20px rgba(32, 201, 151, 0.2); /* 포커스 시 그림자 효과 강화 */
}

.main-search-container .fa-search {
    position: absolute;
    left: 25px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-light);
    font-size: 1.1rem;
}

/* =================================================================
    [추가] 솔루션 목록 카드 디자인
================================================================= */

.loading-message,
.empty-message,
.error-message {
    text-align: center;
    padding: 80px 20px;
    font-size: 1.1rem;
    color: var(--color-text-light);
}

.solution-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    padding: 20px 0;
}

.solution-card {
    display: flex;
    flex-direction: column;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border-color: var(--color-primary);
}

.card-thumbnail {
    width: 100%;
    padding-top: 60%; /* 5:3 비율 */
    position: relative;
    background-color: #f0f2f5;
}

.card-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.solution-card:hover .card-thumbnail img {
    transform: scale(1.05);
}

.card-content {
    padding: 25px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-category {
    display: inline-block;
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 12px;
    align-self: flex-start;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text-dark);
    margin: 0 0 10px 0;
    /* 2줄 이상일 경우 말줄임 처리 */
    height: 58px; 
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.card-excerpt {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-light);
    margin: 0;
    flex-grow: 1;
}

@media (max-width: 768px) {
    .solution-card-grid {
        grid-template-columns: 1fr;
    }
}